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ROSA REVERSE
cannot block the primary air intake for combustion. The primary air also keeps the flame alive.
The primary air register must be almost completely closed during wood combustion, as otherwise the wood burns too quickly and the
cooker may overheat.
2A - SECONDARY Air Register
Over the door of the hearth there is the secondary air control. This regulator must be open (the lever must be moved to the right - see
Table), especially for wood combustion, so that un-burnt carbon does not undergo a post-combustion. See chapter Normal operation.
Through this register it is possible to adjust the power of the stove. Leaving it slightly open, according to the flue of the chimney, it is
possible to keep the glass clean. It is possible to get the air SECONDARY directly from outside through a flexible tube (fireproof
NOT furnished, see chapter AIR FLOW IN THE PLACE OF INSTALLATION DURING COMBUSTION).
B - FLUE GAS Register
(Picture 6 at page 67
(Conversion from the cooker HOTPLATE USE – OVEN USE function to the cooker HEATING function)
On the right of the front of the stove/cooker, between the protection rail and the oven door, is the smoke-register control lever, recognisable
as a bronze knob. When the lever is pushed towards the back of the stove/cooker, the combustion gases flow above the oven directly
towards the exhaust stub (cooker function – PLATE USE); when the lever is pulled towards you, the combustion gases flow all around
the oven, so the internal temperature increases evenly (cooker – oven cooking and heating – OVEN USE).
To ignite the flame (see Cap. IGNITION) :
•
Open the FLUE GAS Register (cooker function – PLATE USE) to aid flue gas exhaust. Position the register (any butterfly valve placed
on the flue gas exhaust pipe must also be opened).
•
Open the primary air register and secondary air register.
•
After having started the fire with small pieces of wood and waited until it is well lit.
•
Bring the flue gas register to the oven position.
•
Close the any butterfly valve placed on the flue gas exhaust pipe must also be opened.
How to set the machine to BOIL WATER
• Keep the flue gas register on the cooker function – HOTPLATE USE.
• Primary air half open.
• Secondary air completely open.
• Load wood as described in the manual (hourly load).
How to set the machine to COOK BISCUITS
• Primary air register CLOSED
• Secondary air register POS.2
• Bring the flue gas register to the cooker function – PLATE USE position. This keeps the oven temperature stable around 230 °C.
• Load wood as described in the manual (hourly load).
• Wait for 230 °C to be reached.
• Place the tray of biscuits in the low position for 25-30 minutes (slow cooking) or in the medium position for 15-20 minutes (quick
cooking).
• Turn the tray halfway through cooking, if necessary.
The control regulation during the ignition phase is the following :
Ignition phase
The register regulation necessary in order to obtain nominal calorific output is the following (see Cap. TECHNICAL DATA):
Hourly wood consumption in kg/h
(wood with 20% Max humidity)
2,3
ACCESSORIES
ROSA REVERSE
7. FLUE
Essential requirements for correct appliance operation:
•
the internal section must preferably be circular;
•
the appliance must be thermally insulated and impermeable and built with suitable materials which are resistant to heat, combustion
products and any condensation;
•
there must be no narrowing and vertical passages with deviations must not be greater than 45°;
•
if already used, it must be clean;
•
the technical data from the instruction manual must be respected;
If the flues are of a square or rectangular section, the internal edges must be rounded with a radius of not less than 20 mm.
For the rectangular section, the maximum ratio between the sides must be ≤ 1.5.
A section which is too small causes a reduction in draught. A minimum height of 4 m is advisable.
The following materials are FORBIDDEN and compromise the good operation of the appliance: asbestos cement, galvanised steel, rough
7095003
(Picture 6 at page
67).
)
Picture
6.
PRIMARY air
OPEN
PRIMARY air
CLOSED
CHROME PLATED
OVEN GRILLE
OPTIONAL
SECONDARY air
OPEN
SECONDARY air
POS.2
Picture 6
POKER
GLOVE
INCLUDED
INCLUDED
SMOKES control
Cooker function
TERTIARY air
PRE-ADJUSTED
19
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